Ad Biz Biggest Stories of the Week By Erik Oster on Dec. 1, 2017 - 12:34 PM –We Hear: Ford to Re-Examine Its Relationship with WPP in 2018 –Denver’s Cultivator Advertising Apologizes for Local Coffee Shop’s Campaign Celebrating Gentrification –Huge to Shutter All Operations in Brazil Amid Ongoing Economic Crisis –CP+B to Close its Miami Office in March –Hilton Worldwide Appoints TBWA as Global Creative Agency